I love this for a simple trem, but it sure is nice to be able to tell what the time of the trem visually. I love this feature in my Trem Lune.
i know this is an old post but i would love to know this as well. anyone?
heres the schematic
http://www.schematicheaven.com/effects/boss_tr2_tremolo.pdf
howd this guy do it?
http://www.youtube.com/watch?v=cvlK3QLClh8
Can anyone confirm this? Im learning schematics and cant seem to figure it out? Maybe someone could explain it....?
(http://www.box.net/shared/static/xfga7j747g.gif)
I would love to know this as well...
up to the top...
Shouldn't be hard to try. Mount the 3 resistors, tranny and led on a little piece of perf or vero and hook it up to C10 or R37 and see if it works.
Quote from: MikeH on April 01, 2009, 11:54:31 AM
Shouldn't be hard to try. Mount the 3 resistors, tranny and led on a little piece of perf or vero and hook it up to C10 or R37 and see if it works.
could you explain it a little better for me...I'm still learning thanks
**Warning, not the elegant way...but it may work none-the-less.**
Grab your voltmeter, clip the black lead to ground. You know that there has to be an LFO somewhere in that funky green box. Next start poking around with that red lead until you find a voltage that goes up and down. It should change how fast it goes up and in relation to the speed knob on the pedal. You've now found an LFO point. This will probably not be enough current to drive an LED as is so you will need a small transistor amplifier. Don't worry this can be done with just about any NPN and a few resistors.
It should be very similar to the procedure in this post:
http://www.diystompboxes.com/smfforum/index.php?topic=38178.0
Try this until somebody more knowledgeable than myself proves me wrong.
Ian
Here is another method for adding an Rate L.E.D
http://bounav.free.fr/wp/?p=254 (http://bounav.free.fr/wp/?p=254)
Not sure if this one is in phase or not, or if it saps volume/signal from the I.C.